نتایج جستجو برای: erbium
تعداد نتایج: 2857 فیلتر نتایج به سال:
Erbium dopants in crystals exhibit highly coherent optical transitions well suited for solid-state optical quantum memories operating in the telecom band. Here we demonstrate coupling of erbium dopant ions in yttrium orthosilicate to a photonic crystal cavity fabricated directly in the host crystal using focused ion beam milling. The coupling leads to reduction of the photoluminescence lifetime...
Efficient light generation on silicon is desirable for a variety of applications because of its low fabrication cost relative to III/V semiconductors and because it will enable monolithic integration with electronic components on the same Si platform. We studied silicon-rich silicon nitride with emission in the visible and erbium-doped silicon nitride (Er:SiNx) with emission at 1540 nm. Both of...
Objective. The influence of Coherent Ultrapulse, TruPulse and Erbium: YAG laser skin resurfacing on survival of the skin flaps when performed simultaneously was evaluated. Material and methods. We used twelve female Yucatan minipigs in the study. Skin flaps including paniculus carnosus were raised on the animals’ back. The flaps were sutured into the defect under tension. We designed 4 experime...
We report on a new vector model of an erbium-doped fibre laser mode locked with carbon nanotubes. This model goes beyond the limitations of the previously used models based on either coupled nonlinear Schrödinger or Ginzburg-Landau equations. Unlike the previous models, it accounts for the vector nature of the interaction between an optical field and an erbium-doped active medium, slow relaxati...
Soft tissue laser, such as diode and Nd:YAG lasers were initially used in soft tissue lesions because of its increased success rate. It was because of the fact that these lasers were well-absorbed by chromophores, such as hemoglobin and melanin which are found abundant in the oral mucosa. The introduction of erbium family in 1990 comprising the Er:YAG and Er,Cr:YSGG lasers made the hard tissue ...
We report a peak gain of 1.2dB/cm at 1535nm in an Erbium:Lutecium codoped Al/P/Si fibre fabricated using a standard MCVD and solution doping technique. This is the highest gain per unit length yet reported in an Erbium doped fiber amplifier. The incorporation of Lutetium into the glass is shown to reduce the erbium ion clustering within the fiber. The highest gain per unit length yet reported f...
In this thesis, the materials aspects of erbium-doped silicon (Si:Er) are studied to maximize Si:Er luminescence intensity and to improve Si:Er performance as an optoelectronic semiconductor material. Studies of erbium (Er) and silicon (Si) reactivity, erbium diffusion and solubility in silicon, Si:Er heat treatment processing with oxygen and fluorine co-implantation and the mechanism of Si:Er ...
Background: Ablative laser treatment is widely used in dermatology. Different laser types are available. In contrast to that, the medical publication on erbium-YAG laser in dermatology often include small samples only. Objective: We want to demonstrate the versatility of classical erbium-YAG laser for medical conditions in dermatology in a single-center study. Materials and methods: This is a r...
GAPONTSEV, v.P., MATITSIN, s.M., ISINEEV, A.A., and KRAVCHENKO, v.B.: ‘Erbium glass lasers and their applications’, Opt. Laser Technol., 1982, 14, pp. 189-196 LAPORTA, P., LONGHI, s., MARCHES, M., TACCHEO, s., and SVELTO, 0.: ‘2.5 GHz and 5 GHz harmonic mode-locking of a diode-pumped bulk erbium-ytterbium glass laser at 1.5 microns’, IEEE Photonics Technol. Lett., 1995, I , pp. 155-157 LENZ, G....
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